17 insulation contractors ranked by CR ScoreUpdated 0 paid placements in this rankingHow we rank →
Best overall in Shelby: The CrawlSpace King, CR Score 65/100; 5.0★ from 251 Google reviews; open 24/7.
Best for emergencies (open 24/7): GSM Services, posts 24/7 hours; ranked #2 of 17.
Most-reviewed: GSM Services, 3,506 Google reviews at 4.9★, the most of 17 ranked; ranked #2.
Rankings can't be bought. Contractors can't pay to change their rank or score. How we rank
17 Shelby insulation contractors are ranked here by CR Score, from ten published factors. 4 are open 24/7, 8 open Saturdays and 4 open Sundays, based on posted hours. The median Google rating is 4.9★ across 17 rated businesses.
| Rank | Business | CR Score | Google rating | Based in | Hours | Best for |
|---|---|---|---|---|---|---|
| 1 | The CrawlSpace King | 65 | 5.0★ (251) | Shelby | 24/7 | Overall |
| 2 | GSM Services | 57 | 4.9★ (3,506) | Gastonia, 20 mi away | 24/7 | Emergencies, Most reviews |
| 3 | JME Solutions LLC : Exterior work, Gutters, Siding, Gutter Cleaning & Insulation Company | 54 | 5.0★ (219) | Monroe, 15 mi away | Sat | — |
| 4 | Quality Insulating Company Inc | 53 | 3.7★ (25) | Shelby | — | — |
| 5 | Oak Leaf Home Inspections, LLC | 53 | 4.8★ (23) | Charlotte, 17 mi away | Sat | — |
| 6 | Precision Pest Management dba PESTEX | 52 | 5.0★ (70) | Lincolnton, 22 mi away | — | — |
| 7 | Miller & Condrey HVAC/Refrigeration | 52 | 4.9★ (121) | Shelby | — | — |
| 8 | Bunch Inc | 50 | 3.7★ (3) | Kings Mountain, 10 mi away | — | — |
| 9 | Gastonia Sheet Metal | 49 | 4.7★ (12) | Gastonia, 18 mi away | 24/7 | — |
| 10 | Carolina Foundation Solutions | 48 | 4.9★ (14) | Spartanburg, 21 mi away | 24/7 | — |
Ordered by CR Score, a 0–100 score from ten published factors. Paid placement never changes the order.
Scores below: based on 8 of 10 factors; credentials and recency not yet collected. Hatched segments mark factors we don't have yet.
Ranked #1 because of its Google rating and trade focus: 5.0★ from 251 Google reviews, listed on Google as “Insulation contractor”.
Based in Gastonia, 20 mi away
Ranked #2 because of its Google rating and review volume: 4.9★ from 3,506 Google reviews, the most in Shelby.
Based in Monroe, 15 mi away
Ranked #3 because of its Google rating and trade focus: 5.0★ from 219 Google reviews, listed on Google as “Construction company”.
Based in Shelby
Ranked #4 because of its Google rating and trade focus: 3.7★ from 25 Google reviews, listed on Google as “Insulation contractor”.
Based in Charlotte, 17 mi away
Ranked #5 because of its Google rating and trade focus: 4.8★ from 23 Google reviews, listed on Google as “Insulation contractor”.
Based in Lincolnton, 22 mi away
Ranked #6 because of its Google rating and trade focus: 5.0★ from 70 Google reviews, listed on Google as “Insulation contractor”.
Based in Shelby
Ranked #7 because of its Google rating and review volume: 4.9★ from 121 Google reviews.
Based in Kings Mountain, 10 mi away
Ranked #8 because of its Google rating and trade focus: 3.7★ from 3 Google reviews, listed on Google as “Insulation contractor”.
Based in Gastonia, 18 mi away
Ranked #9 because of its Google rating and availability: 4.7★ from 12 Google reviews, open 24/7.
Based in Spartanburg, 21 mi away
Ranked #10 because of its Google rating and availability: 4.9★ from 14 Google reviews, open 24/7.
Based in Gastonia, 21 mi away
Ranked #11 because of its Google rating and review volume: 5.0★ from 199 Google reviews.
Based in Belmont, 25 mi away
Ranked #12 because of its Google rating and trade focus: 5.0★ from 7 Google reviews, listed on Google as “Insulation contractor”.
Based in Gastonia, 20 mi away
Ranked #13 because of its Google rating and trade focus: 5.0★ from 3 Google reviews, listed on Google as “Insulation contractor”.
Based in Belmont, 23 mi away
Ranked #14 because of its Google rating and review volume: 4.9★ from 61 Google reviews.
Based in Asheville, 24 mi away
Ranked #15 because of its Google rating and trade focus: 3.0★ from 4 Google reviews, listed on Google as “Insulation contractor”.
Based in Gastonia, 25 mi away
Ranked #16 because of its Google rating and trade focus: 3.0★ from 3 Google reviews, listed on Google as “Insulation contractor”.
Based in Gastonia, 25 mi away
Ranked #17 because of its Google rating and trade focus: 5.0★ from 4 Google reviews, listed on Google as “Roofing contractor”.
6 more insulation contractors within 25 mi that we can't rank yet: too few reviews, or a trade we couldn't confirm. Listed A to Z.
| Business | Google rating | Distance |
|---|---|---|
| Insulate America | In Shelby | |
| Insulate America | In Shelby | |
| Pacor Insulation | 5.0★ (1) | 17 mi |
| Quality Insulating Inc | 5.0★ (1) | 19 mi |
| Total Comfort Installations (TCI) | 17 mi | |
| Vastago Insulation | 5.0★ (1) | 23 mi |
National price ranges in USD, not adjusted for Shelby. Each row names its basis and the month we checked it.
| Job | Low | Typical | High | Basis | Checked |
|---|---|---|---|---|---|
| Attic insulation | $1,700 | $2,100 | $2,500 | Per attic: typical range of customer-reported jobs (about $1 to $3 per sq ft). US national range | October 2026 |
We scored 17 Shelby insulation contractors on ten factors, weighted as shown. A business is ranked when its trade is confirmed and it has 3 or more Google reviews or a claimed profile. A business with no Google reviews scores zero on rating, review volume and recency. Other unknown factors are left out, not counted as zero. Scores last refreshed October 22, 2026.
Paid placement never changes a rank or score. Featured businesses are paid, labelled, limited to 3 and shown above the ranking, outside it.
| Factor | Weight | Computed from | In Shelby data |
|---|---|---|---|
| Reputation | 25% | Google star rating, adjusted for how many reviews back it | Measured |
| Credentials | 15% | Active state license, bond and workers’ comp on file | Not yet collected |
| Review volume | 10% | Number of Google reviews, compared with the most-reviewed business on the list | Measured |
| Recency | 5% | Share of reviews from the last 12 months | Not yet collected |
| Availability | 5% | Weekly open hours, Saturday, Sunday, 24/7 or same-day | Measured |
| Trade focus | 10% | How clearly the business does this trade (its Google category and name) | Measured |
| Proximity | 5% | Based in the city scores highest, less the farther away it is | Measured |
| Claimed profile | 10% | The business has claimed its ContractorsRanked profile (free or paid earn the same) | Measured |
| Partnered | 5% | The business links to ContractorsRanked from its own website with our badge, checked periodically | Measured |
| ContractorsRanked reviews | 10% | Verified customer reviews collected by ContractorsRanked: their rating and how many there are | Measured |